<template>
  <li
    @mouseenter="isShow = true"
    @mouseleave="isShow = false"
    :class="{ myClass: isShow }"
  >
    <label>
      <!-- <input type="checkbox" :checked="todo.completed" @click="updateT" /> -->
      <input type="checkbox" v-model="isCheck" />
      <span>{{ todo.title }}</span>
    </label>
    <button
      class="btn btn-danger"
      style="display: none"
      @click="deleteT"
      v-show="isShow"
    >
      删除
    </button>
  </li>
</template>

<script>
export default {
  name: "Item",
  props: ['todo', 'index', 'deleteTodo','updateTodo'],
  data() {
    return {
      isShow: false,
    };
  },
  methods: {
    deleteT() {
      this.deleteTodo(this.index);
    },
    updateT() {
      this.updateTodo(this.index);
    }
  },
  computed: {
    isCheck: {
      get() {
        return this.todo.completed;
      },
      set(val) {
        this.updateTodo(this.index);
      }
    }
  }
};
</script>

<style >
.myClass {
  background: skyblue;
}
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}
</style>
